| Autor: |
Eko Supriyanto, Jasmy Yunus, Sasikala Thangavelu |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
International Journal on Robotics, Automation and Sciences. 2:9-17 |
| ISSN: |
2682-860X |
| DOI: |
10.33093/ijoras.2020.2.2 |
| Popis: |
Almost all medical devices in ICU/CCU have a built-in clinical alarm system to alert when there are changes in a patient’s condition. The objective of this study is to investigate the effectiveness of the existing alarm system in ICU/CCU. Two summative usability tests were conducted to test the effectiveness of existing and new alarm signals based on IEC 60601-1-8:2006 standard. Further formative test is conducted to study the perception of urgency associated with a number of tones in the alarm signals. The findings indicate that the existing auditory alarm signal in ICU/CCU does not indicate the urgency of the alarm conditions. The simulation test indicates that the respondents preferred 282Hz, 500Hz and 800Hz for low, medium and high-risk alarm respectively. The one-sample proportion z test on urgency mapping indicates that the proportion of responses for the highest risk is more than 50% for a single tone test signal. These results show that a single tone test signal being perceived as the highest risk is regardless of frequency. It can be concluded the auditory alarm designed based on this IEC 60608-1-8:2006 standard is not effective. As such it is proposed that the incorporation of the new alarm frequencies and tones will improve the effectiveness of the alarm signal |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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